Big Bore Replacement Piston Kit | 85" | 92" | 100" | 109" EVO

Piston Kits - 85" / 92" / 100" / 109" - Evolution Replacement piston kit for Bolt-On Big Bore Kit Top-quality, custom-forged piston kits constructed from high-strength aluminum alloy Includes pistons with skirt coating, rings, chrome piston pins and retainer clips High-tech manufacturing ensures greater operating strength and lower expansion at high temperatures High-tension compression rings have 3mm oil scrapper rails Offset pin designed for smoother operation Replacement piston rings are available separately (sold as a set for one piston) Made in the U.S.A. NOTE: Piston kits are intended for use with Revolution Big Bore cylinders only. NOTE: Not recommended for use with cast-iron or ductile-sleeved cylinders.